Finding the Third Proportional to 415,046 and 906,978

Step by Step Solution

1. Step 1: Write the proportion equation
   415,046 : 906,978 = 906,978 : x
2. Step 2: Convert to fraction form
   415,046/906,978 = 906,978/x
3. Step 3: Cross multiply
   415,046x = 906,978 × 906,978
4. Step 4: Simplify right side
   415,046x = 822,609,092,484
5. Step 5: Solve for x
   x = 822,609,092,484/415,046
6. Step 6: Final answer
   x = 1,981,970.90